THE CARBONIFEROUS LIMESTONE OF BURRINGTON COMBE 29 
fauna in this part of the series. The main faunal assem- 
blage is the same in both areas ; but slight differences be- 
tween the special faunal characters of the various parts 
of the zone, in the two areas, have been demonstrated, as 
was to be expected. 
C. Syringothyris Zone. 
Lithological characters. 
Massive limestones mainly oolitic. 
Exposure. 
The whole of this zone, from Horizon y, about 200 yards 
below the bend, to the top of Horizon at Plumley's 
Hen, is well exposed on the right hand side of the road as 
we descend the Combe. The lower and upper beds have 
been quarried back to some little distance from the road. 
The top beds of the main zone (just below Horizon 
stand out prominently into the Combe, and cause a bend 
in the road ; at this point a Cave runs into the hill. 
Coral fauna (omitting Horizon y). 
Zaphrentis aff. cornucopiae. 
Caninia cylindrica. 
Cyathophyllum (p. 
Michelinia cf. megastoma. 
Syringopora spp. 
Clisiophyllid. 
Brachiopod fauna (omitting Horizon <y) 
Spirifer aff. clathratus and var. 
Syringothyris cuspidata. 
Syringothyris aff. laminosa. 
Spiriferina cf. laminosa. 
Reticularia aff. lineata. 
Athyris cf. expansa. 
Seminula amhigua. 
Seminula aff. ficoidea 
